Fix 5bb06c7c build on windows.

```
C:\b\slave\clang-x64-windows-msvc\llvm-project\llvm\lib\Transforms\Instrumentation\DataFlowSanitizer.cpp(1062,37): error: call to constructor of 'llvm::APInt' is ambiguous
                                    llvm::APInt(32, dbgloc.getLine(), false));
                                    ^           ~~~~~~~~~~~~~~~~~~~~~~~~~~~
C:\b\slave\clang-x64-windows-msvc\llvm-project\llvm\include\llvm/ADT/APInt.h(108,3): note: candidate constructor
  APInt(unsigned numBits, uint64_t val, bool isSigned = false)
  ^
C:\b\slave\clang-x64-windows-msvc\llvm-project\llvm\include\llvm/ADT/APInt.h(134,3): note: candidate constructor
  APInt(unsigned numBits, unsigned numWords, const uint64_t bigVal[]);
  ^
1 error generated.
```